This 1968 unused plate block of 4 Jefferson green 1 cent stamps is a must-have for stamp collectors interested in historical figures. The stamps are of excellent quality, being mint never hinged/mnh and ungraded. The certification is uncertified, and the color is green. The stamps were issued in the United States and are a part of the unused stamp collection. The denomination is 1 cent, and the year of issue is 1968. Don't miss out on this opportunity to add a piece of history to your stamp collection.